JTS Topology Suite

The JTS Topology Suite is an API of spatial predicates and functions for processing geometry. It has the following design goals:

JTS conforms to the Simple Features Specification for SQL published by the Open Geospatial Consortium
JTS provides a complete, consistent, robust implementation of fundamental algorithms for processing linear geometry on the 2-dimensional Cartesian plane
JTS is fast enough for production use
JTS is written in 100% pure Java^TM

JTS provides spatial analysis methods such as Intersection

Note: The JTS Topology Suite was formerly known as the "Java Topology Suite". The name has been changed to avoid copyright issues.

Features

See the linked, annotated feature list.

Software

JTS versions can be downloaded from the SourceForge JTS site.

Support

Mailing List

The JTS Mailing List is a forum to discuss all aspects of the JTS Topology Suite. Algorithm design, implementation issues, application issues, bug reports, etc, are all discussed on this list.

Bug Reports

Reports of suspected bugs or design issues should be reported to [email protected]. For fastest action, reports should be acompanied by

examples of the problem (e.g. input, actual output and expected output in WKT or WKB)
or by working code examples demonstrating the problem.

Documentation

Tutorial (Under Construction)
User Guide (Under Construction)
Javadoc for the JTS API
FAQ
History of JTS and GEOS
Wikipedia article

Relevant Links

Presentations

Secrets of the JTS Topology Suite - Martin Davis, FOSS4G 2007, Victoria BC
JTS - A Library for Geometry Processing - Martin Davis, 2011
What's New in JTS 2012 - Martin Davis, 2012
JTS - State of the Lib - Martin Davis, 2015

Development

The JTS source repository is hosted at https://sourceforge.net/projects/jts-topo-suite/

Source code can be browsed here

Acknowledgements

YourKit is kindly supporting open source projects with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products: YourKit Java Profiler and YourKit .NET Profiler.

Java^TM is a trademark of Sun Microsystems, Inc. in the United States and other countries.